def make_subdata_cmd(self,
prefix,
dataname,
seq,
lifetime=None,
subinfo: SubInfo = None) -> (str, Any):
"""
make subdata command
:param prefix: datarn_prefix
:type prefix: str
:param dataname: dataname
:type dataname: str
:param seq: sequence no.
:type seq: int
:param subinfo: subinfo
:type subinfo: SubInfo
:return: command, interest_param, app_param
"""
# make a subdatareq command name with args
#command = Name.to_str(prefix + "/" + CMD_SUBDATAREQ + dataname + f'/{seq:d}')
command = prefix + "/" + PSKCmd.commands[
"CMD_SD"] + dataname + "/" + str(seq)
# set interest parameter
i_param = InterestParam()
i_param.must_be_fresh = True
i_param.nonce = gen_nonce()
i_param.lifetime = (lifetime if lifetime else INT_LT_10)
# make a app_params for subscription
param = PSKParameters(subinfo=subinfo)
str_app_param = json.dumps(param, default=serialize)
return command, i_param, bytes(str_app_param, 'utf-8')
def make_irdel_cmd(self,
prefix,
dataname,
rawpacket: BinaryStr = None) -> (str, Any):
"""
make irdel command
:param prefix: ir_prefix
:type prefix: str
:param dataname: dataname
:type dataname: str
:param rawpacket: raw interest packet
:type bytes:
:return: command, interest_param, app_param
"""
# make a irmod command name with args
command = prefix + "/" + PSKCmd.commands["CMD_MD"] + dataname
# set interest parameter
i_param = InterestParam()
i_param.must_be_fresh = True
i_param.nonce = gen_nonce()
i_param.lifetime = INT_LT_4
# make app_param for Infomation Registry (raw interest packet)
str_rawpacket = rawpacket.decode('utf-8')
param = PSKParameters(rawpacket=str_rawpacket)
str_app_param = json.dumps(param, default=serialize)
return command, i_param, bytes(str_app_param, 'utf-8')
def make_subtopic_cmd(self,
prefix,
dataname,
subinfo: SubInfo = None) -> (str, Any):
"""
make subtopic command
:param prefix: network_prefix or topicrn_prefix
:type prefix: str
:param dataname: topic name
:type dataname: str
:param subinfo: subscription information
:type subinfo: SubInfo
:return: command, interest_param, app_param
"""
# make a subtopic command name with args
command = prefix + "/" + PSKCmd.commands["CMD_ST"] + dataname
# set interest parameter
i_param = InterestParam()
i_param.must_be_fresh = True
i_param.nonce = gen_nonce()
i_param.lifetime = INT_LT_10
# make a app_params for subscription
param = PSKParameters(subinfo=subinfo)
str_app_param = json.dumps(param, default=serialize)
return command, i_param, bytes(str_app_param, 'utf-8')
def make_pubdata_cmd(self,
prefix,
dataname,
seq,
pubdatainfo: PubDataInfo = None) -> (str, Any):
"""
make pubdata command
:param prefix: network_prefix
:type prefix: str
:param dataname: dataname for publishing data
:type dataname: str
:param seq: sequence no.
:type seq: int
:param pubed_data: pubed data
:type pubed_data: any
:return: command, interest_param, app_param
"""
# make a pubdata command name with args
command = prefix + "/" + PSKCmd.commands[
"CMD_PD"] + dataname + '/' + str(seq)
# set interest parameter
i_param = InterestParam()
i_param.must_be_fresh = True
i_param.nonce = gen_nonce()
i_param.lifetime = INT_LT_4
param = PSKParameters(pubdatainfo=pubdatainfo)
str_app_param = json.dumps(param, default=serialize)
return command, i_param, bytes(str_app_param, 'utf-8')
def make_pubadv_cmd(self,
prefix: str,
dataname: str,
pubadvinfo: PubAdvInfo = None,
irinfo: IRInfo = None,
rninfo: RNInfo = None) -> (str, Any):
"""
make pubadv command
:param prefix: network_prefix or broker_prefix
:type prefix: str
:param dataname: dataname for publishing data
:type dataname: str
:param pubinfo: pubadvinfo
:type pubinfo: PubAdvInfo
:param irinfo: irinfo
:type irinfo: IRInfo
:param rninfo: rninfo
:type rninfo: RNInfo
:return: command, interest_param, app_param
"""
# make a pubadv command name with args
#command = Name.to_str(prefix + "/" + CMD_PUBADV + dataname)
command = prefix + "/" + PSKCmd.commands["CMD_PA"] + dataname
# set interest parameter
i_param = InterestParam()
i_param.must_be_fresh = True
i_param.nonce = gen_nonce()
i_param.lifetime = INT_LT_10
param = PSKParameters(pubadvinfo=pubadvinfo,
irinfo=irinfo,
rninfo=rninfo)
str_app_param = json.dumps(param, default=serialize)
return command, i_param, bytes(str_app_param, 'utf-8')
def make_generic_cmd(self,
command: str,
prefix: str,
dataname: str = "/_",
pubadvinfo: PubAdvInfo = None,
irinfo: IRInfo = None,
rninfo: RNInfo = None,
**kwargs) -> (str, Any):
"""
make generic command
:param prefix: network_prefix or broker_prefix
:type prefix: str
:param dataname: dataname for publishing data
:type dataname: str
:param pubinfo: pubadvinfo
:type pubinfo: PubAdvInfo
:param irinfo: irinfo
:type irinfo: IRInfo
:param rninfo: rninfo
:type rninfo: RNInfo
:return: command, interest_param, app_param
"""
command = prefix + "/" + command + dataname
# set interest parameter
i_param = InterestParam()
i_param.must_be_fresh = True
i_param.nonce = gen_nonce()
i_param.lifetime = INT_LT_10
param = PSKParameters(pubadvinfo=pubadvinfo,
irinfo=irinfo,
rninfo=rninfo,
**kwargs)
str_app_param = json.dumps(param, default=serialize)
return command, i_param, bytes(str_app_param, 'utf-8')
def test_interest_params():
name = '/local/ndn/prefix'
int_param = InterestParam()
int_param.can_be_prefix = True
int_param.must_be_fresh = True
int_param.hop_limit = 1
int_param.nonce = 0
int_param.lifetime = 10
interest = make_interest(name, int_param)
assert (interest == b'\x05\x26\x07\x14\x08\x05local\x08\x03ndn\x08\x06prefix'
b'\x21\x00\x12\x00\x0a\x04\x00\x00\x00\x00\x0c\x01\x0a\x22\x01\x01')
def make_pubunadv_cmd(self,
prefix,
dataname,
pubadvinfo: PubAdvInfo = None) -> (str, Any):
"""
make pubunadv command
:param prefix: network_prefix or broker_prefix
:type prefix: str
:param dataname: dataname for unpublishing data
:type dataname: str
:param pubadvinfo: pub information
:type pubadvinfo:
:return: command, interest_param, app_param
"""
# make a pubunadv command name with args
command = prefix + "/" + PSKCmd.commands["CMD_PU"] + dataname
# set interest parameter
i_param = InterestParam()
i_param.must_be_fresh = True
i_param.nonce = gen_nonce()
i_param.lifetime = INT_LT_10
param = PSKParameters(pubadvinfo=pubadvinfo)
str_app_param = json.dumps(param, default=serialize)
return command, i_param, bytes(str_app_param, 'utf-8')